Willoughby,
I might be wrong, and if anyone knows different then please correct me, but supposedly most of the weight gain that comes from quitting smoking is due to increased eating. Some of it is because of the drop of metabolic rates but I really think that most of it is just because people who are quitting need to keep things in there mouth.
As far as metabolism goes Green Tea Extract, or Green Tea itself, helps speed up metabolism. Maybe you can give that a try.

Good luck,
Jessica

<font color=blue> You are in this snowglobe. It is encovered in glass and secure. But one day someone comes and shakes the globe and the pieces go flying everywhere. Now they will eventually settle but they won't be the way they were before and they can never be that way again. </font color=blue>